In what scenarios is the ROC curve more appropriate to use than the precision/recall curve? 1. When the positive class is rare and/or the cost of false negatives is high. 2. When the goal is to maximize the F1 score. 3. When the positive class is not rare and/or the cost of false positives and false negatives is equal. 4. When the goal is to balance precision and recall.

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System Model Approaches

The systems model approach is a process-oriented representation that emphasizes the impact or flow of information between modules. The multidisciplinary study of the use of models to design and create systems in business and IT development is known as systems model approach. It models how processes interact and what these processes do, but it does not go into detail about how these processes are implemented. Functional decomposition may be utilized to enhance the models employed in this technique, and they can be coupled to requirements models for additional system partitioning.